Run resume paused command or run commands simultaneously or run commands one after the other

Pause a command ctrl+z the command will be paused next run command in back ground using bg :
[root@localhost shell_test]# updatedb
^Z
[1]+ Stopped updatedb
[root@localhost shell_test]# bg
[1]+ updatedb &
[root@localhost shell_test]#
Even you can resume command in foreground by using fg in the similar way but I feel bg(back ground) is a better option.